abc's john muller is here with the latest. john? >> reporter: all right, ron. the mystery just deepened overnight. the amber alert, the children thought to have died in that horrible fire are alive. it took almost a week for this amber alert. but repeated searches for the children or their remains have turned up nothing. overnight, tennessee officials putting out a statewide amber alert. 9-year-old chloie leverette, and 7-year-old gage daniel, now considered missing with no clues to their whereabouts. it's been six days since a fire torched the home they lived in with their step-grandparents. initially, it was thought that the children and the grandparents died in the flames. but after six days of exhaustive searching inside the rubble, there's only physical evidence of the grandparents, not the children. >> if we just had ashes, you know. there's no bodies. but we don't have anything. >> reporter: the amber alert reads, the location of chloie and gage are unknown at this time. if you have any information concerning the children, please contact the tbi. authori